Swing dancing may not have the same cache it did a decade ago, but there is no shortage of people who still like to hit the dance floor to big-band tunes. Such is the case with High Society and the Sweethearts of Swing, who perform at Tango Del Rey on Oct. 19. While the music is pretty darn good, the real attraction here is the Sweethearts of Swing, fronted by Janet Hammer, who do a bang-up job of impersonating 1940s icons The Andrews Sisters. If you like vintage music, this night’s performance will be the next best thing to a time machine.